Hi!

Has anyone managed to make group by functionality to a JTable (like in
Outlook 2003) ?

For example if you have a column with dates and you click the column the
table would be sorted in groups like Today, Yesterday, 2 days ago, Last
week, Last month, Older.
If you would click a column with file sizes the groups would be like
Tiny,Small, Medium,Large, Huge

There would be thicker cell row between the groups with the column
header text + column group text + how many items in group
like for example
File size: Tiny (4 items)
Created: Today (7 items)

I have been trying to do this but it's quite tricky (partly because I am
quite new to Swing and Java)

Br,
Jani